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Finding the Fourth Proportional to 536,471.10, 804,706.65 and 270,128.70

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Solution

The fourth proportional to 536,471.10, 804,706.65 and 270,128.70 is: 405,193.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,471.10 : 804,706.65 = 270,128.70 : x
  2. Step 2: Convert to fraction form
    536,471.10/804,706.65 = 270,128.70/x
  3. Step 3: Cross multiply
    536,471.10x = 804,706.65 × 270,128.70
  4. Step 4: Simplify right side
    536,471.10x = 217,374,361,245.86
  5. Step 5: Solve for x
    x = 217,374,361,245.86/536,471.10
  6. Step 6: Final answer
    x = 405,193.05

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.